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JNM-ECZL series FT NMR

JNM-ECZL series FT NMR
The ECZ Luminous (JNM-ECZL series) is an FT NMR spectrometer equipped with state-of-the-art digital and high frequency technology. The Smart Transceiver System, a high-speed, high-precision digital high-frequency control circuit, enables further miniaturization and high reliability of the spectrometer. It is capable of high-field and solid-state NMR measurements while maintaining the size of a conventional low-field solution NMR system.
With the new Multi Frequency Drive System one can run multi-nuclei pulse trains on a single physical RF channel. This allows to run modern complex NMR experiments on a spectrometer with very simple configuration.
This series is regularly offered for spectrometers of all NMR frequencies that are manufactured by JEOL.

Key Features

MFDS (Multi Frequency Drive System)

We have developed a new Multi Frequency Drive System. Expanding on the design concept of the ECZ system, the ECZ Luminous system enables multiple resonance measurements using triple-resonance probes such as HCN and HCX probes on a standard two-channel spectrometer. This allows to run complex multi-nuclei experiments on a fairly simple and inexpensive NMR system.

5 mm HCN probe configuration with ECZ Luminous System

MFDS (Multi Frequency Drive System)
HCP triple resonance experiment performed by 2 channel spectrometer
HCP triple resonance experiment performed by 2 channel spectrometer
(¹³C-³¹P {¹H} correlation)
HCN triple resonance experiment performed by 2 channel spectrometer
HCN triple resonance experiment performed by 2 channel spectrometer
(CBCACONH)

STS (Smart Transceiver System)

The ECZ Luminous inherits the STS (Smart Transceiver System) digital high integration and high frequency technology used in the previous ECZ series. The sequencer, DDS (Direct Digital Synthesizer), FSU (Frequency Synthesizer Unit), transmitter, receiver, acquisition unit, and gate control unit are all integrated on a single RF (Radio Frequency) transmitter/receiver board. Two 4-frequency source units (one each for HF and LF) and one receiver are configured on a single RF transmitter/receiver board. The standard configuration has a total of eight frequency sources and one receiver. The ECZ Luminous can be expanded to four RF transmitter/receiver boards to support up to 8 nuclei, 32-frequency sources and four receivers. In addition, the transmitter/receiver system in the STS is a hybrid of direct conversion oversampling and superheterodyne undersampling technologies, which allows for flexible frequency conversion and efficient and optimal signal transmission/reception depending on the target frequency.

STS (Smart Transceiver System)

Highly Precise Digital Control

The ECZ Luminous sequencer provides fast control of frequency, phase and amplitude modulation with a minimum control time resolution of 5 ns. In addition, the ECZ Luminous is equipped with a digital quadrature detection (DQD) circuit that enables dynamic frequency and phase modulation synchronously or asynchronously in both the transmitter and receiver systems. This enables signal processing with high functionality and a high degree of freedom, and is expected to be applied to cutting-edge solid- state NMR measurements, which have become increasingly important in recent years. In addition, a unique streaming transfer technology is used for the sequence memory, which has a quasi-infinite memory capacity. At the same time, the same control performance is provided for various gating and synchronization operations with external systems. These high-speed, high-accuracy digital control technologies provide the best solution for a wide variety of requirements to realize a wide range of advanced NMR measurements.
Highly Precise Digital Control
PM-BEBOP180 Phase modulated pulse
Highly Precise Digital Control

1H decoupled 19F-13C HMQC 2D spectrum

Wide Dynamic Range

The high dynamic range of ECZ Luminous allows you to clearly capture small NMR signals in NMR spectra in the presence of strong NMR signals (i.e. residual solvent signal).
Wide Dynamic Range
A small 13C satellite signal (about 4.6 millionths) of the acetone signal in a mixed sample: H2O:DMSO:Acetone=25131:125:1 (about 10% D2O) is clearly visible.

Low-noise Preamplifiers

Newly developed low-noise preamplifiers improve sensitivity. In combination with ROYALPROBE™ / ROYALPROBE™ HFX, the sensitivity can be potentially improved by about 10%.

Digital Lock Circuit for Stability

The ECZ Luminous uses STS technology to digitally control the 2H lock with high speed and high accuracy. The excellent response control of the digital feedback circuit suppresses the effects of magnetic field fluctuations more efficiently. The high speed and high precision digital lock feedback function enables stable and long time measurement.
Digital Lock Circuit for Stability
Stability test data over 12 hours 1D1H-13C HMQC needs to observe the correlated signal (left and right signals) of 13C-coupled1H, which has an existence ratio of about 1%, and eliminate the directly observed signal of 12C-coupled1H, which has an existence ratio of about 99%. This is why it is used to check stability.

Easy Shimming

ECZ Luminous features improved shim sets. The speed of automated 1D and 3D gradient shimming routines has been substantially increased compared to ECZ systems. This improves high throughput NMR measurements.
Gradient shimming (2H)
Gradient shimming (2H)
Spectra before and after resolution adjustment by gradient shim. The resolution is improved by 20 seconds.
Gradient shimming (19F)
Gradient shimming (19F)
You can select the 19F signal and use it to adjust the resolution with gradient shimming as well as the 2H signal.
Poorly adjusted radial shims under sample rotation (top) and corrected with 3D gradient shimming (bottom)
Poorly adjusted radial shims under sample rotation (top) and corrected with 3D gradient shimming (bottom)

Specifications

More compact spectrometer

ECZ Luminous has achieved a significant reduction in size while enhancing the performance of the spectrometer. The volume of the R series has been reduced to about 1/3 of that of the conventional equivalent.
Size comparison with conventional models with equivalent performance
Size comparison with conventional models with equivalent performance

Specifications

JNM-ECZL G series JNM-ECZL R series JNM-ECZL S series
Frequency 400 MHz - 1.3 GHz 400 MHz - 600 MHz 400 MHz
Sample type Solution / Solid Solution / Solid Solution
Number of channels 2 (standard) 2 2
Power amplifier 100 W (standard) 100 W 50 W
 High frequency 200/500/1000 W (as optional)
Power amplifier 300 W (standard) 300 W 150 W
 Low frequency 500/1000/2000 W (as optional)
Magnetic field gradient amplifier 10 A (standard) 10 A 10 A
30/50 A (as optional)
Console size W×D×H 600×855×1,279 mm 536×730×855 mm 536×730×855 mm

Lineup

ECZ Luminous is available in three different models to meet a wide variety of user requirements. All models feature high performance digital high frequency technology and user-friendly Delta software.

JNM-ECZL G series

ECZL G series is a flagship model for cutting-edge NMR methods. The footprint of the spectrometer has been reduced to less than 60% of ECZR, while maintaining the expandability needed to support a wide range of applications. It is flexible in terms of expansion, with support for three or more channels, high-power amplifiers, and high-output magnetic field gradients, allowing for future functional expansion even when installed in the minimum configuration. It is an adaptable FT-NMR system that can respond to changes in user applications and the introduction of the latest applications.
JNM-ECZL G series with dual rack configuration
Dual rack configuration
JNM-ECZL G series

JNM-ECZL R series

ECZL R series is a compact spectrometer that is compatible with magnetic fields of up to 600 MHz. The footprint is less than 50% of that of ECZR, and it can also be used for solid-state measurements.
JNM-ECZL R series

JNM-ECZL S series

ECZL S series is a streamlined model dedicated to 400 MHz solutions-state NMR while incorporating the high performance digital high frequency technology of the ECZL series.
JNM-ECZL S series

Application Notes

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